Microorganisms in the gut of beetles: evidence from molecular cloning

Zhang, Ning; Suh, Sung-Oui; Blackwell, Meredith

doi:10.1016/j.jip.2003.10.002

Cited by 59 publications

(30 citation statements)

References 32 publications

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“…In general Sugiyamaella species have been found in association with wood and insects, and Su. bullrunensis was described from the gut of woodfeeding beetle Odontotaenius disjunctus (Houseknecht et al 2011) as was indicated by a molecular cloning study of the same beetle (Zhang et al 2003). Altogether, these findings suggest that Sugiyamaella species are widely distributed in wood, soil and the gut of insects.…”

Section: Resultsmentioning

confidence: 66%

“…The isolation of the new X-F yeast isolated from the gut of wood roaches extends the association of yeasts with the rare biochemical ability to ferment D-xylose and wood-feeding insects (Zhang et al 2003, Suh et al 2004, Nguyen et al 2006, Berkov et al 2007, Grunwald et al 2010). This finding is in agreement with studies in which the X-F yeasts Sc.…”

Section: Discussionmentioning

confidence: 79%

“…In particular members of the Sugiyamaella, Scheffersomyces and Spathaspora clades have been found in association with passalids (Zhang et al 2003, Suh et al 2004, Nguyen et al 2006, Houseknecht et al 2011, as well as other wood-feeding insects and woody plants (Berkov et al 2007, Grunwald et al 2010, Hughes et al 2011. Species of Sugiyamaella are xylose-assimilating yeasts, and members of the Scheffersomyces and Spathaspora clades have attracted attention because they possess the rare ability to ferment D-xylose, which gives them economic potential for production of bioethanol from plant waste residues (Agbogbo andWenger 2006, 2007;Agbogbo and Coward-Kelly 2008).…”

Section: Introductionmentioning

confidence: 99%

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Scheffersomyces cryptocercus: a new xylose-fermenting yeast associated with the gut of wood roaches and new combinations in theSugiyamaellayeast clade

2013

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The gut of wood-feeding insects is a microhabitat for a specialized community of microbes, including bacteria and several groups of eukaryotes such as nematodes, parabasalids and fungi. The characterization of gut yeast communities from a variety of insects has shown that certain yeasts often are associated with the insects. The gut of woodfeeding insects is rich in ascomycete yeasts and in particular xylose-fermenting (X-F) and assimilating yeasts have been consistently present in the gut of lignicolous insects. The objective of this study was the characterization of the yeast flora from the gut of the wood roach Cryptocercus sp. (Blattodea: Cryptocercidae). Five wood roaches were collected along the Appalachian Trail near the border between Tennessee and North Carolina, USA. We isolated 18 yeast strains from the wood roaches identified as Sugiyamaella paludigena and Sugiyamaella lignohabitans, xylose-assimilating yeasts, and Scheffersomyces cryptocercus (NRRL Y-48824 T 5 CBS 12658) a new species of X-F yeast. The presence of X-F and certain non X-F yeasts in the gut of the subsocial wood roach Cryptocercus sp. extends the previous findings of associations between certain ascomycete yeasts and lignicolous insects. New combinations were made for 13 asexual members of the Sugiyamaella clade.

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Section: Resultsmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

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Scheffersomyces cryptocercus: a new xylose-fermenting yeast associated with the gut of wood roaches and new combinations in theSugiyamaellayeast clade

2013

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“…Later, the communities of phoretic arthropods and eukaryotic gut organisms were more extensively reported by Pearse et al (1936), followed a decade later by life history studies by Gray (1946). More recently, a number of yeasts and other eukaryotic organisms, including parabasalids, have been cultured or cloned and identified from the O. disjunctus gut Zhang et al, 2003;Nguyen et al, 2006). One of these yeasts is the potentially commercially important species, Scheffersomyces stipitis (syn.…”

Section: Introductionmentioning

confidence: 99%

Compartmentalized microbial composition, oxygen gradients and nitrogen fixation in the gut ofOdontotaenius disjunctus

et al. 2013

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Coarse woody debris is an important biomass pool in forest ecosystems that numerous groups of insects have evolved to take advantage of. These insects are ecologically important and represent useful natural analogs for biomass to biofuel conversion. Using a range of molecular approaches combined with microelectrode measurements of oxygen, we have characterized the gut microbiome and physiology of Odontotaenius disjunctus, a wood-feeding beetle native to the eastern United States. We hypothesized that morphological and physiological differences among gut regions would correspond to distinct microbial populations and activities. In fact, significantly different communities were found in the foregut (FG), midgut (MG)/posterior hindgut (PHG) and anterior hindgut (AHG), with Actinobacteria and Rhizobiales being more abundant toward the FG and PHG. Conversely, fermentative bacteria such as Bacteroidetes and Clostridia were more abundant in the AHG, and also the sole region where methanogenic Archaea were detected. Although each gut region possessed an anaerobic core, micron-scale profiling identified radial gradients in oxygen concentration in all regions. Nitrogen fixation was confirmed by 15 N 2 incorporation, and nitrogenase gene (nifH) expression was greatest in the AHG. Phylogenetic analysis of nifH identified the most abundant transcript as related to Ni-Fe nitrogenase of a Bacteroidetes species, Paludibacter propionicigenes. Overall, we demonstrate not only a compartmentalized microbiome in this beetle digestive tract but also sharp oxygen gradients that may permit aerobic and anaerobic metabolism to occur within the same regions in close proximity. We provide evidence for the microbial fixation of N 2 that is important for this beetle to subsist on woody biomass.

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“…Since the advent of DNA-based methods to characterize microbial communities, there are several reports of Malassezia or Malassezia-like organisms. The samples include beetle guts (Zhang et al 2003), nematodes (Renker et al 2003), sponges (Gao et al 2008), coral (Amend et al 2012), and airborne samples (Pitkaranta et al 2008). A better understanding of Malassezia adaptation to mammalian skin may arise from comparisons with Malassezia-like organisms from other biological sources.…”

Section: Human Microbiome Analysis Of Fungi From Skin and Other Body mentioning

confidence: 99%

Fungi on the Skin: Dermatophytes and Malassezia

White

Findley

Dawson³

et al. 2014

Cold Spring Harbor Perspectives in Medicine

166

109

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Several human skin diseases and disorders are associated with two groups of fungi, the dermatophytes and Malassezia. Although these skin-related problems are not generally life threatening, they are among the most common diseases and disorders of mankind. These fungi are phylogenetically divergent, with the dermatophytes within the Ascomycota and Malassezia within Basidiomycota. Genome analysis indicates that the adaptations to the skin environment are different in these two groups of fungi. Malassezia are dependent on host lipids and secrete lipases and phospholipases that likely release host fatty acids. The dermatophytes encode multiple enzymes with potential roles in modulating host interactions: polyketide synthases, nonribosomal peptide synthetases, LysM, proteases, kinases, and pseudokinases. These two fungal groups have maximized their interactions with the host using two very different mechanisms.

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Microorganisms in the gut of beetles: evidence from molecular cloning

Cited by 59 publications

References 32 publications

Scheffersomyces cryptocercus: a new xylose-fermenting yeast associated with the gut of wood roaches and new combinations in theSugiyamaellayeast clade

Scheffersomyces cryptocercus: a new xylose-fermenting yeast associated with the gut of wood roaches and new combinations in theSugiyamaellayeast clade

Compartmentalized microbial composition, oxygen gradients and nitrogen fixation in the gut ofOdontotaenius disjunctus

Fungi on the Skin: Dermatophytes and Malassezia

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